Dismantling device for binding steel bars of building steel

Abstract

The utility model discloses a dismantling device for building steel binding steel bars, which comprises a dismantling device body, the dismantling device body comprises a handle and a fixing block, the fixing block is connected to one end of the handle, a clamping groove matched with the binding steel bars in size is arranged on the fixing block, and when the dismantling device is used, the binding steel bars are clamped in the clamping groove. The reciprocating driving handle drives the fixing block to generate repeated alternating stress on the binding steel bars until the binding steel bars are subjected to fatigue damage and fracture. Binding steel bars on steel can be removed without adopting a shearing mode, and the steel bar binding device is simple in structure, light in weight, low in cost and long in service life.

Description

Technical Field

[0001] This utility model relates to the field of building steel technology, specifically to a device for removing reinforcing bars tied to building steel. Background Technology

[0002] Steel is a commonly used material in the construction industry. Depending on the specific needs, steel can be categorized into reinforcing bars, structural steel, steel pipes, and steel plates. During transportation from the factory, to prevent the steel from scattering and falling, it is typically bundled together with small reinforcing bars. The ends of these bars are brought together and twisted into a spiral shape, thus binding several pieces of steel together as a single unit. This facilitates lifting and transportation, preventing the steel from easily scattering during transport. Once the steel arrives at the construction site, workers must remove the binding bars before they can retrieve the required steel.

[0003] Currently, when removing the binding steel bars, workers usually cut them with large pliers. These pliers are heavy and expensive. Some construction sites use hydraulic pliers, but they are also more expensive than regular pliers. Over time, the cutting edges of the pliers become dull and have a short lifespan. Utility Model Content

[0004] The purpose of this utility model is to provide a device for removing the binding steel bars on building steel, which can remove the binding steel bars on the steel without cutting them. It has a simple structure, light weight, low cost, and long service life.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following solution:

[0006] A device for removing reinforcing bars tied to building steel includes a device body, which includes a handle and a fixing block. The fixing block is connected to one end of the handle and has a slot that matches the size of the tied reinforcing bar. In use, the tied reinforcing bar is inserted into the slot, and the handle is reciprocated to drive the fixing block to generate repeated alternating stress on the tied reinforcing bar until the tied reinforcing bar suffers fatigue failure and breaks.

[0007] In this design, the handle serves as the main lever of the operating device, providing the power source. The handle is designed for ease of gripping and operation, while also possessing sufficient strength and toughness to withstand the forces generated during reciprocating motion. A fixing block is connected to one end of the handle and has a slot adapted to the size of the tied rebar to ensure a tight hold and prevent slippage or detachment during removal. In use, the operator first inserts the tied rebar into the slot of the fixing block. Then, the operator grips the handle and reciprocates, causing the fixing block to apply repeated alternating stress to the tied rebar. This alternating stress gradually accumulates, leading to fatigue failure and eventual breakage of the rebar, thus removing it. This eliminates the need for shearing to remove the tied rebar. Compared to existing pliers, the removal device in this design is simpler in structure, lighter in weight, lower in cost, and has a longer service life.

[0008] Optionally, the handle consists of a force transmission rod and a drive rod assembly, with a fixing block connected to one end of the force transmission rod and a drive rod connected to the other end of the force transmission rod. The included angle between the force transmission rod and the drive rod is an obtuse angle.

[0009] Optionally, the force transmission rod is horizontally positioned, the drive rod is angled upward, and the connection between the force transmission rod and the drive rod is arc-shaped.

[0010] Optionally, the length of the force transmission rod is greater than the length of the drive rod.

[0011] Optionally, a rubber sleeve is fitted on the top of the drive rod.

[0012] Optionally, the fixing block is welded to the end of the force transmission rod away from the drive rod, and the fixing block is parallel to the force transmission rod.

[0013] Optionally, the force transmission rod and the drive rod are integrally formed and both are threaded steel bars.

[0014] Optionally, the slot is located on the bottom surface of the fixing block, and the slot is semi-circular.

[0015] Optionally, multiple slots are distributed along the length of the fixed block, and the diameters of the multiple slots are different.

[0016] Optionally, the binding steel bars are round steel bars.

[0017] The beneficial effects of this utility model are:

[0018] 1. In this utility model, during use, the operator first inserts the binding steel bar into the slot of the fixing block. Then, the operator holds the handle and drives the handle back and forth, causing the fixing block to generate repeated alternating stress on the binding steel bar. This alternating stress will gradually accumulate and cause fatigue failure of the binding steel bar, eventually causing it to break, thereby achieving the removal of the binding steel bar. In this way, the binding steel bar on the steel can be removed without cutting. Compared with existing pliers, the removal device in this solution has a simple structure, is lighter, has a lower cost, and a longer service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 A schematic diagram showing the deformation of the reinforcing steel bars when the handle is oscillating back and forth.

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the steel after it has been bundled.

[0022] Reference numerals: 1-handle, 101-force transmission rod, 102-drive rod, 2-fixing block, 3-slot, 4-rubber sleeve, 5-binding steel bar, 6-steel. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0024] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example

[0027] A device for removing reinforcing bars tied to building steel includes a device body, which includes a handle 1 and a fixing block 2. The fixing block 2 is connected to one end of the handle 1. The fixing block 2 is provided with a slot 3 that is adapted to the size of the tied reinforcing bar 5. When in use, the tied reinforcing bar 5 is inserted into the slot 3. The handle 1 is reciprocated to drive the fixing block 2 to generate repeated alternating stress on the tied reinforcing bar 5 until the tied reinforcing bar 5 suffers fatigue failure and breaks.

[0028] In this embodiment, as Figure 1 As shown, handle 1 serves as the main handle of the operating device, providing the power source. The design of handle 1 should facilitate gripping and operation, while also possessing sufficient strength and toughness to withstand the forces generated during reciprocating drive. Fixing block 2 is connected to one end of handle 1. Fixing block 2 has a slot 3 that matches the size of the binding steel bar 5 to ensure a tight hold on the binding steel bar 5, preventing slippage or detachment during dismantling. Figure 3 As shown, the binding rebar 5 is generally made of round steel with a diameter of 4mm-10mm. After binding, the round steel forms a ring shape, and there is a gap between the binding rebar and the steel. During use, the operator first inserts the binding rebar 5 into the slot 3 of the fixing block 2. Then, the operator holds the handle 1 and drives it back and forth, causing the fixing block 2 to swing back and forth in the plane tangential to the ring-shaped binding rebar 5. This generates repeated alternating stress on the binding rebar 5, which gradually accumulates and leads to fatigue failure of the binding rebar 5. Figure 2 As shown, the reciprocating swing of the fixing block 2 will cause the binding steel bars 5 located on both sides of the fixing block 2 to twist and eventually break, thereby removing the binding steel bars 5. The binding steel bars 5 on the steel 6 can be removed without cutting. Compared with the existing pliers, the removal device in this solution has a simple structure, is lighter, has a lower cost, and a longer service life.

[0029] Furthermore, the handle 1 is composed of a force transmission rod 101 and a drive rod 102. The fixing block 2 is connected to one end of the force transmission rod 101, and the drive rod 102 is connected to the other end of the force transmission rod 101. The included angle between the force transmission rod 101 and the drive rod 102 is an obtuse angle.

[0030] Specifically, the force transmission rod 101 serves as the main path for force transmission, transferring the power from the drive rod 102 to the fixed block 2, thereby applying alternating stress to the binding steel bar 5. One end of the force transmission rod 101 is firmly connected to the fixed block 2, ensuring that the force can be applied directly and effectively to the binding steel bar 5. The drive rod 102 is the main part for the operator to apply force. The operator generates power by reciprocating the drive rod 102, generally in a horizontal or near-horizontal direction, although this is not a necessary condition. The other end of the drive rod 102 is connected to the force transmission rod 101, but the connection between the two is not a straight line, but forms an obtuse angle. The obtuse angle between the force transmission rod 101 and the drive rod 102 allows the operator to apply force more naturally during driving, reducing hand fatigue and discomfort. Secondly, the obtuse angle design helps to generate a larger torque during driving, because torque is the product of force and the radius of rotation of the force, and the obtuse angle increases the radius of rotation of the force, thus generating a larger destructive force under the same driving force. When the operator moves the drive rod 102 back and forth, due to the obtuse angle design between the force transmission rod 101 and the drive rod 102, the force is effectively transmitted to the fixed block 2 and repeated alternating stress is applied to the binding steel bar 5. As the stress accumulates, the binding steel bar 5 will eventually suffer fatigue failure and break.

[0031] Furthermore, the force transmission rod 101 is horizontally arranged, the drive rod 102 is obliquely upward arranged, and the connection between the force transmission rod 101 and the drive rod 102 is arc-shaped.

[0032] Specifically, the upward-sloping design of the drive rod 102 allows the operator to stand and operate more naturally, reducing the need to bend over or twist the body, and improving operational comfort and efficiency. The arc-shaped design at the connection point creates a smooth transition between the force transmission rod 101 and the drive rod 102, avoiding stress concentration problems that may occur with right-angle or acute-angle connections.

[0033] Furthermore, the length of the force transmission rod 101 is greater than the length of the drive rod 102.

[0034] Specifically, due to the longer length of the force transmission rod 101, when the operator applies force via the drive rod 102, this force is amplified to some extent on the force transmission rod 101. This is because a longer rod generates a larger torque when subjected to force, especially when the point of force application is far from the fixed point (in this case, the connection point between the force transmission rod 101 and the fixed block 2). Therefore, the longer force transmission rod 101 helps to convert the relatively small force applied by the operator into a larger destructive force on the binding steel bar 5. The longer force transmission rod 101 also helps to improve the stability of the operation. During dismantling, the binding steel bar 5 may generate reaction forces attempting to resist dismantling. If the force transmission rod 101 were shorter, these reaction forces might more easily lead to instability or displacement of the device. However, when the force transmission rod 101 is longer, it can better resist these reaction forces, maintain the stability of the device, and thus ensure the smooth progress of the dismantling process.

[0035] Furthermore, a rubber sleeve 4 is fitted onto the top of the drive rod 102.

[0036] Specifically, the rubber sleeve 4, with its excellent elasticity and friction, significantly improves the operator's grip comfort when fitted onto the top of the drive rod 102. It effectively reduces direct contact between the hand and the metal drive rod 102, preventing discomfort or wear caused by prolonged gripping of hard objects. Simultaneously, the friction of the rubber sleeve 4 helps the operator better control the device during disassembly, improving operational stability and accuracy.

[0037] When working in complex environments such as construction sites, operators' hands may become slippery due to sweat, dust, or oil. The material and texture design of the rubber sleeve 4 increases the friction between the hand and the drive rod 102, effectively preventing the device from slipping or going out of control during operation. This anti-slip performance is crucial for ensuring operator safety and the smooth progress of dismantling work.

[0038] During the removal of the binding steel bars 5, the drive rod 102 may be subjected to reaction forces or impact forces from the steel bars. The rubber sleeve 4, as an elastic material, can mitigate these impact forces to some extent, reducing their direct impact on the operator's hands. This not only helps protect the operator's hands from injury but also improves the service life and stability of the device.

[0039] Furthermore, the fixing block 2 is welded to the end of the force transmission rod 101 away from the drive rod 102, and the fixing block 2 is parallel to the force transmission rod 101.

[0040] Furthermore, the force transmission rod 101 and the drive rod 102 are integrally formed and both are threaded steel bars.

[0041] Furthermore, the slot 3 is disposed on the bottom surface of the fixing block 2, and the slot 3 is semi-circular.

[0042] Furthermore, multiple slots 3 are distributed along the length of the fixing block 2, and the diameters of the multiple slots 3 are different.

[0043] Specifically, the slot 3 is set on the bottom surface of the fixing block 2, and it penetrates the bottom surface of the fixing block 2 along the width direction of the fixing block 2. The cross-section of the slot 3 is semi-circular, which matches the cylindrical cross-section of the binding steel bar 5, which helps to achieve a tighter fit and fixation. Multiple slots 3 are distributed along the length direction of the fixing block 2. Different slots 3 can accommodate binding steel bars 5 of different diameters and sizes, enabling the device to cope with various dismantling scenarios. The operator can select the appropriate slot 3 to fix the binding steel bar 5 according to actual needs, without worrying about the steel bar size not matching the slot 3. This not only improves dismantling efficiency, but also reduces the difficulty of operation and the error rate.

[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments based on the technical essence of the present utility model and within the spirit and principles of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A de-bundling device for de-bundling steel reinforcing bars of a construction steel material, characterized in that, The utility model relates to a reinforcing steel bar dismantling device, including dismantling device body, dismantling device body includes handle (1), fixed block (2), fixed block (2) is connected to one end of handle (1), and fixed block (2) is equipped with the clamping groove (3) of size adaptation with bundling reinforcing steel bar (5), when using, bundling reinforcing steel bar (5) is clamped into clamping groove (3), reciprocating drive handle (1) drives fixed block (2) to produce repeated alternating stress to bundling reinforcing steel bar (5) until bundling reinforcing steel bar (5) fatigue failure and breakage.

2. A building steel material bundled rebar removing device according to claim 1, characterized in that, The handle (1) is composed of a force transmission rod (101) and a driving rod (102), the fixed block (2) is connected to one end of the force transmission rod (101), the driving rod (102) is connected to the other end of the force transmission rod (101), and the included angle between the force transmission rod (101) and the driving rod (102) is obtuse.

3. A building steel material bundled rebar removing device according to claim 2, characterized in that, The force transmission rod (101) is horizontally arranged, the driving rod (102) is obliquely upward arranged, and the connection between the force transmission rod (101) and the driving rod (102) is arc-shaped.

4. A building steel material bundled rebar removing device according to claim 3, characterized in that, The length of the force transmission rod (101) is greater than the length of the driving rod (102).

5. A building steel material bundled rebar removing device according to claim 4, characterized in that, A rubber sleeve (4) is arranged on the top of the driving rod (102).

6. The apparatus according to claim 2, wherein The fixed block (2) is welded to the end of the force transmission rod (101) away from the driving rod (102), and the fixed block (2) is parallel to the force transmission rod (101).

7. The apparatus according to claim 2, wherein The force transmission rod (101) and the driving rod (102) are integrally formed and are both deformed steel bars.

8. The apparatus according to claim 1, wherein The clamping groove (3) is arranged on the bottom surface of the fixed block (2), and the clamping groove (3) is semicircular.

9. A building steel material bundled rebar removing device according to claim 8, characterized in that, A plurality of clamping grooves (3) are distributed along the length direction of the fixed block (2), and the diameters of the plurality of clamping grooves (3) are different.

10. The apparatus according to claim 2, wherein The bundling reinforcing steel bar (5) is round steel.

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